Work-parting Pullers (bursters) Patents (Class 225/100)
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Patent number: 4069957Abstract: A burster mechanism for separating continuous form webs into sheets along transverse pre-weakened lines comprising two sets of feeding means spaced along a curved web path so that one set of rolls is at an angle to the other. A curved guide member which extends between the two feeding means defines the outer curvature of the web path. The second feeding means is operable at a faster rate than the first feeding means and is actuated at a predetermined time to draw the web taut between the feeding means and separate the sheet from the web.Type: GrantFiled: August 18, 1976Date of Patent: January 24, 1978Assignee: International Business Machines CorporationInventor: John Stuart Moffitt
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Patent number: 4030650Abstract: Apparatus for removing tail flash from molded plastic articles, such as containers or bottles, in which a pair of reciprocatory jaw assemblies are formed with meshing teeth which engage the flash from opposite sides and subsequently tear the flash from the article. The jaw assemblies are formed with meshing tooth-like projections which engage flash from opposite sides at spaced locations along the line of juncture between the web of flash and the surface of the article. Inclined cam surfaces on one jaw assembly urge a flash web engaged between the teeth of the closing jaws outwardly away from the article to tear the flash clear of the article.Type: GrantFiled: July 8, 1976Date of Patent: June 21, 1977Assignee: Lyle Development, Inc.Inventor: John W. Oberloier
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Patent number: 4027813Abstract: A tube separator has two blocks with vertically and linearly aligned protrusions to which joined tubes are attached for separation into individual tubes. The protrusions are interdigitally arranged when the blocks are adjacent each other. A chain drive engages one block and pulls it from the other block which is locked in a fixed position. A guiding means maintains the blocks in an upright position. An ejecting means for separating the tubes from the protrusions engages the driven block and ejects the tubes from the protrusions. The fixed block is pushed by a driven block from a succeeding cycle and also engages the ejecting means for removing the tubes from the protrusions. The chain drive returns a block along the guide means so that an operator may reuse them with other tubes.Type: GrantFiled: June 17, 1976Date of Patent: June 7, 1977Assignee: Cadillac Rubber & Plastics, Inc.Inventors: Glenn V. Dukes, Thomas L. Stroh
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Patent number: 4025023Abstract: A burster mechanism for separating continuous form webs into sheets along transverse pre-weakened lines comprising two sets of feeding means spaced along a curved web path so that one set of rolls is at an angle to the other. A curved guide member which extends between the two feeding means defines the outer curvature of the web path. The second feeding means is operable at a faster rate than the first feeding means and is actuated at a predetermined time to draw the web taut between the feeding means and separate the sheet from the web.Type: GrantFiled: October 31, 1975Date of Patent: May 24, 1977Assignee: International Business Machines CorporationInventor: John Stuart Moffitt
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Patent number: 4022364Abstract: An improved burster for separating continuous business forms stationery assemblies into individual form lengths of the type including an infeed mechanism for driving the continuous assembly into a burster which, in turn, separates the assembly into individual form lengths which are placed on a conveyor to be conveyed to a stacking tray. The burster includes a powered mechanism whereby the burster, the conveyor, and a portion of the stacking mechanism may be simultaneously adjusted for various form lengths. Also incorporated is an automatic electrical system responsive to such adjustment for automatically adjusting the conveying rate of the conveyor to insure proper shingling of the individual form lengths thereon. The burster is in a housing having a movable cover whereby access to the various mechanisms may be obtained. A control system provides for jogging of the mechanisms with the cover open that precludes continuous operation for safety purposes.Type: GrantFiled: February 26, 1976Date of Patent: May 10, 1977Assignee: UARCO IncorporatedInventor: Charles C. Davis
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Patent number: 4010881Abstract: A device is shown wherein the bale of metal cutting chips formed at one end of a chip conveyor is ripped apart into smaller portions which can be more easily handled in subsequent treatment operations such as separating or crushing. The device comprises a holding tooth and a ripping tooth which are pushed into the bale of chips. After extension into the bale, the ripping tooth is then moved away from the holding tooth in the conveying direction by drive means thus ripping off a portion of the bale. The teeth are then retracted and returned to their original positions. These steps are repeated until the bale has been separated into smaller portions as desired.Type: GrantFiled: August 11, 1975Date of Patent: March 8, 1977Assignee: Mayfran IncorporatedInventors: Klaus von Wietersheim, Bastiaan Maertzdorf, Eduard Hendrik Schiks
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Patent number: 3999694Abstract: A method of severing useful lengths connected together by small fillets in a sheet of paper, pasteboard or the like, comprises applying the sheets on to a substantially non-flexible support having a contact surface of a first coefficient of friction, and then exerting on adjacent useful lengths, through forces which act in opposite directions tangentially on said adjacent useful lengths with a contact pressure by way of a second coefficient of friction exceeding the value of said first coefficient of friction, a splaying movement sufficient to destroy the fillets. Apparatus for carrying out the method may comprise a press, pressure fingers disposed at both sides of the longitudinal axis of said press, and contact surfaces having said comparatively high second coefficient of friction and at the free ends of said pressure fingers, said contact surfaces being intended for application to the useful lengths to be severed.Type: GrantFiled: January 29, 1975Date of Patent: December 28, 1976Inventor: Franz Vossen
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Patent number: 3991924Abstract: A simplified burster mechanism for perforated forms is provided wherein the burster can be adjusted to separate forms of different sizes in a simplified manner.Type: GrantFiled: July 30, 1975Date of Patent: November 16, 1976Assignee: American/Durein CompanyInventor: Marlin A. Schueler
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Patent number: 3987949Abstract: A forms bursting apparatus having a brake bar which grips a document to be separated, transversely holding the document during the bursting operation. A bursting bar assembly forces the leading document portion against a rotating burster roll. A bursting bar, which grips the document, is swingably mounted for rotation with the bursting roll during the bursting.Type: GrantFiled: October 20, 1975Date of Patent: October 26, 1976Assignee: International Business Machines CorporationInventors: Donald Franklin Manning, Frederick William Singer, Joseph James Student
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Patent number: 3968916Abstract: An improved burster for separating continuous business forms stationery assemblies into individual form lengths of the type including an infeed mechanism for driving the continuous assembly into a burster which, in turn, separates the assembly into individual form lengths which are placed on a conveyor to be conveyed to a stacking tray. The burster includes a powered mechanism whereby the burster, the conveyor, and a portion of the stacking mechanism may be simultaneously adjusted for various form lengths. Also incorporated is an automatic electrical system responsive to such adjustment for automatically adjusting the conveying rate of the conveyor to insure proper shingling of the individual form lengths thereon. The burster is in a housing having a movable cover whereby access to the various mechanisms may be obtained. A control system provides for jogging of the mechanisms with the cover open that precludes continuous operation for safety purposes.Type: GrantFiled: September 16, 1974Date of Patent: July 13, 1976Assignee: Uarco IncorporatedInventor: Charles C. Davis
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Patent number: 3967767Abstract: A device for feeding wrapping material of flaccid type for use in a wrapping machine. Initially an elongate strip of the flaccid material is moved forward, and is only partly transversely cut to define sheets which can thereafter be torn from the strip. The sheets are left under control, as to their exact positions, until they are taken by the wrapping mechanism, along with the product to be wrapped. For this purpose the partly cut strip of flaccid wrapping material is guided and moved forward by rolls and guides which impress longitudinal strengthening ribs in the material. The strip is then engaged by sheet tearing and flattening rolls which have aligned, cylindrical surface portions rotating at a speed greater than that of the moving strip itself to detach successive sheets from the partly cut strip and to control each detached sheet as to its position until it is engaged with the product to be wrapped in it.Type: GrantFiled: December 2, 1974Date of Patent: July 6, 1976Assignee: G. D Societa Per AzioniInventor: Enzo Seragnoli
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Patent number: 3942694Abstract: A machine for severing individual plastic bags from a length of bags joined by perforated junctures. The length of bags is extended and severed by the action of two spaced apart sets of rollers, each set grasping the bags, the second set rotating with a higher surface speed than the first. During extension and severing the bags are supported by two overlapping conveyor belts travelling at speeds intermediate the surface speed of the two sets of rollers. The conveyor belts minimize the whipping of the severed edges of the bags. The bag severing machine is suited to operate in conjunction with equipment for folding plastic bags and inserting the folded bags in packages.Type: GrantFiled: October 4, 1974Date of Patent: March 9, 1976Assignee: Canadian Industries LimitedInventors: Elwyn David Jones, Derek Edgar Scuffell